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Official data from INPI

APARELHO PARA CONTROLE DE CIRCULACAO DE OLEO A PROVA DE FALHAS

ConcedidaInvention Patent

Application data

Number

PI8405194

Type

Invention Patent

Filing

10/17/1983

Publication

08/27/1985

Progress at the INPI

  1. Filing10/17/83
  2. Publication08/27/85
  3. Examination08/04/87
  4. Allowance05/24/88
  5. Grant12/27/88
  6. Terminated10/16/90

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

THOMSON INT CORP [US]

Inventors

D. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/20/1988

RPI 935

Deferimento

#9.1

05/24/1988

RPI 918

Solicitação de exame técnico

#4.1

08/04/1987

RPI 876

Publicação do pedido de patente

#3.1

08/27/1985

RPI 775

Pedido de patente depositado

#2.1

12/26/1984

RPI 740

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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